Damper-control-lock mechanism



Sept. 24, 1929. E. o. YOUNG 1,729,319

DAMPERbONTROL LOCK MECHANISM Filed 001;. 1928 ll/l/l/TTII anoentoz EMIL0' YOUNG Y attoznu Patented Sept. 24, 1929 EMIL O. YOUNG, OF CLEVELAND,OHIO DAMPER-CONTROL-LOCK MECHANISM Application filed October 8, 1928.

p This invention relates to damper control lock mechanism used both forregulating the position of a damper in an air flue and to 1ndicate uponthe inner surface of the wall of a room, what such position is.

within such wall.

plied to rotate said axis.

It is a special advantage of my improved structure, that the rotation ofsuch axis will not only rotate the damper, but will indicate upon theouter surface of the control mechanism, the are through which the damperhas been turned. A further object of my invention is the provision of anindicator to be applied to the surface of a room and having a rotatablecentral axis, and means for locking the axis in position.

A further object of my damper control mechanism lies in its provision oftwo discs one rotating Within the other, but the outer disc beingstationary and provided with an arc-shaped slot'through which theposition of the inner rotatable disc ma be seen. To render suchoperation more e ieient the inner disc has a mark or indentation thereontravelling in the path of the said slot, and the outer disc has asuitable scale marked thereon to indicate the relative position of thetwo discs, the latter having rotatable means relatively movable byengagement of a suitable tool upon the axial portion of one of them toeffect the desired adjustment.

With these and other objects in view later to be more fully set forth,my invention consists in the described structure recited in the appendedclaims and illustrated in the accompanying drawings, in which Figure 1is a perspective view of a flue in the wall of a room broken away toshow a damper therein and a control device shown diagrammatically uponthe surface of the wall;

Serial No. 311,235.

Figure 2 is a plan view of my control lock mechanism;

Figure 3 is a central vertical section taken on the plane indicated bythe line 33 of Fig. 2, and Figure 4 is a perspective detail of a locknut used in my device.

My control mechanism comprises a rim l0 adapted to be applied to thewall of a room or upon the face of a duct, as the case may be, anapertured metal plate 11, a central sleeve member 12 mounted in saidaperture, and an inner disc 13 mounted upon said sleeve.

The peripheral edge of the rim is formed as a head 14 to engage thewall, the central portion of the plate 11 being raised inwardly upon therim thereby spacing the center plate from the rim. This rim 10 isprovided with small apertures 16 for suitable fastenings to secure theparts 10 and 11 rigidly to the wall.

The sleeve 12 is provided with a peripheral flange 17 at its inner enddesigned to be positioned within the raised portion 15 of plate 11, thedisc 13 having an aperture 18,receiving therein the sleeve and snuglyfitting against the flange 17. The aperture 19 of the plate 11 receivesthe sleeve 12 rotatably therein by a loose fit, but the disc 13 issecured tightly upon the sleeve, so that the two will always rotatetogether. The outer end 20 of the sleeve is smooth and is adapted toreceive thereon a closed cap 21 fitting neatly over the end of thesleeve. Suitable means is provided for detachably locking the cap andsleevetogether, which may be a pin 22 adapted to be inserted throughregistering apertures 23 in the parts. Thus, the sleeve 12 is mountedsolely upon the plate '11 and is rotatable therein, while the disc 13 iscarried by the sleeve just forward of the flange 17 and the disc andsleeve together rotate relative to the plate 11, the flange 17 and disc13 being positioned in the space between the plate 11 and the plane ofthe rim 10.

Between the aperture 19 and the end portion 20, the sleeve 12 isprovided with an outer and enlarged threaded surface 24 adapted toreceive thereon the clamping nut 25. The latter is an integral nutcomprising an inner circular flange 26 and an outer polygonal portion 27serving to receive thereon an actuating tool, such as a wrench, forscrewing the nut tightly against the plate 11 which is in turn, pressedagainst the inner disc 13, which is crowded against the flange 17.

The disc 13 is secured non-rotatably upon the sleeve 12 by anyconventional means, as by insertion of a pin 28 through the flange 17and into the sleeve. Thereby, the tightening of the nut 25 will holdthe'disc 13 relative to plate 11.

The flat portion of the plate 11 within the annular raised portion 15,is provided with an arc-shaped slot 29 just bordering the flat portionand adjacent the raised portion, such slot ordinarily extending forabout 180, through which the outer surface of the disc 13 may be seen,and the movement of the latter being clearly indicated by the provisionof a mark or indentation 3O travelling in the slot, which plate has asuitable scale 31 marked thereon to show the relative position of thetwo parts 11 and 13. Since the plate 11 is fixedly secured to the wallof the room or flue, the rotation of the sleeve 12 will be indicated bythe movement of the disc 13 carried thereon. The actuation of the sleeveis effected by application of a suitable tool to the cap 21, by anysuitable means as by the provision of holes 32 in the cap adapted toreceive corresponding pins upon a bar of some sort which by rotationwill rotate the cap and sleeve.

Anyconventional tool may be used for the purpose, the same not beingdescribed in detail since it is not claimed in this case. It istherefore clear that rotation of the nut 25 will tighten the parts 12and 13 in any desired position relative to the plate 11, while rotationof the cap 21 will positively rotate the disc 13 and its marl: 30 to thedesired position. The sleeve 12 has a non-cylindrical, axial openingwhich may receive therein end of the pivotal bar carrying the part to berotated within the flue, which We have shown in this case as a damper 33mounted upon a bar 34. It will thus be seen'that, since the plate 11 ismounted upon the rim 10 which in turn is mounted upon a supportingsurface, the rim 10 carries the entire control mechanism, and whenremoved from such support surface, will readily detach the sleeve 12from the end of the bar 34 whose rotation is to be adjusted. Whentheparts 10 and 11 are removed from said surface, the entire indicatingmechanism as shown in Fig. 2, is removed with them, no part of suchmechanism being indicated on the surface itself.

The end of the bar 3% will have a form corresponding to the opening 35,this being described to merely illustrate a means of effectingdetachable connection between the bar and sleeve, but for which othermeans are recognized. and for which no patentability is claimed in thiscase. The control mechanism of this application is designated by numeral5 as a whole.

While the lock mechanism 5 is illustrated for convenience of descriptionas mounted upon the surface of a wall for actuating the damper of a fineand indicating in such mechanism what the position of the damper is, itis to be understood that the mechanism is equally applicable formounting upon a duct for controlling a damper within the same. Thestructure of the damper or line is not limited to any particular form,as this application is designed to claim the control mechanism, and nota particular damper, its connection with the lock mechanism being statedgenerally only.

In operation, the pivotal bar of the damper being assumed to extendthrough the adjacent wall where the lock mechanism is to be mounted, thecircular plate 11 with its peripheral rim will be secured to the wall inaxial alinement with such bar,the disc 13mounted upon the sleeve and thelatter positioned in the aperture 19 before the plate 11 is secured tothe wall. The end of the said bar will be inserted in the opening 35 ofthe sleeve so that these parts will rotate together. The nut2l is thenscrewed upon the threaded portion24, and the cap 21 locked in positionupon the end of the sleeve as by the pin 22. It will now be seen thatpositive rotation of the cap will turn the damper on its pivot in theflue, and that turning the nut 25 will lock or unlock the parts 12 and13 in a given position. Before the nut is tightened on the sleeve, thelatter will be rotated by a tool applied'to the openings 32 of the cap,and as the disc 13 revolves,the pin 30 thereon will'indicate upon thescale 31 theposition-of the disc and therefore of the damperin the pipe.WVhile so held in position, a wrench applied'to the polygonal portion 27of the nut will tighten the 'disc against the stationary plate 11. Thiswill tighten the disc and plate against the 'flan e 17. A reverseoperation will actuate t 1e damper as desired;

Having thus described my invention, "I claim:

1. A control. 'i'nechanism for operating a damper which is pivoted withn a flueupona bar extending out through the wall of a room or duct, thedampersecured to the bar to be actuated rota ably thereby, said controlmechanism comp .nga centre.lly-apertured plate for mounting on a wal surfaceby rim fasteners, a sleeve mounted rotata'bly in said aperture andcarried bvsalid plate, and having' a peripheral flan; on its innerendyand an extei'nally threaded portion, said sleeve adapted foruonrotatable'connection with the outer end of said bar, flanged capdetachably secured upon theouterend of saidslecve and having holes inthe outer SHId QCB Of bllG cap for receiving pins'on an actuating toolfor rotating the sleeve and bar, and means including a clamping nutmounted on the threaded sleeve outside the said plate for indicating onsaid plate, the rotatable position of the damper in the flue and lockingthe parts in position.

2. A control mechanism comprising a circular plate having a rim forattachment to a flat surface and an apertured central portion spacedfrom the plane of said rim, an externally-threaded sleeve rotatablewithin said aperture and a disc fixedly secured upon the sleeve forposition in contact with the inner surface of the said central portion,means connecting the disc and central portion to indicate the relativeposition of the sleeve in the aperture, a locking nut mounted upon saidsleeve outside of said central portion for clamping the central portionand disc together, and detachable means on the outer end of the sleevefor rotating the latter and the disc relative to said apertured plate.

3. A control mechanism comprising a circular plate having a rim forattachment to a flat surface and an apertured central portion raisedabove the level of said rim, an externally-threaded sleeve having aperipheral flange on its inner end and rotatably mounted Within saidaperture and having a disc secured non-rotatably thereupon for positionin contact with the inner surface of the said central portion, thelatter having an arc-shaped slot through which may be seen a mark nearthe periphery of said disc to indicate the relative position of thesleeve in the aperture, a locking nut rotatably mounted upon the sleeveoutside of the said plate for clamping the disc and said central portiontogether, against the said inner flange, and detachable means on theouter end of the sleeve for rotating the latter.

4. A control mechanism comprising a circular plate having a rim forattachment to a flat surface and an apertured central portion raisedabove the level of said rim, an externally-threaded sleeve rotatablewithin said aperture and a disc fixedly secured upon the sleeve forposition in contact with the inner surface of the said central portion,means connecting the disc and central portion to indicate the relativerotatable position of the sleeve in the aperture, a locking nut mountedupon said sleeve outside of the said plate for clam ing the said centralportion and disc toget ier, against the said inner flange, and a caphaving a peripheral flange for detachably engaging the outer end of thesleeve, there being a transverse pin for insertion in registeringapertures in the flange and sleeve, and the outer surface of the caphaving holes to receive pins on an actuating tool for rotating thesleeve and a member therein to be adjusted relative to the circularplate.

5. A control mechanism for operating the damper which is pivoted Withina flue upon a bar extending out through the wall of a room or duct,comprising a sleeve having an axial opening for detachably connectingthe same with the outer end of said bar and having anexternally-threaded portion, an inner peripheral flange and a smoothouter end, a flanged cap detachably secured upon said smooth outer endand having holes in the outer surface for receiving pins on an actuatingtool for rotating the sleeve and bar, a supporting plate for mounting ona wall surface, and centrally apertured to rotatably mount said sleevetherein, means including a disc mounted on said sleeve for indicatingoutside said plate the rotatable position of the sleeve and of thedamper in the flue, and a clamping nut mounted on the threaded portionof the sleeve for tightening the said disc against the said inner flangeand thereby looking the sleeve and bar in position relative to saidplate.

6. A control mechanism comprising centrally-apertured plates relativelyrotatable about their center and one adapted to be mounted upon a wall,a sleeve mounted in said aperture and carrying one plate relative to theother, the sleeve adapted to receive a bar end therein for adjustment ofthe latter, indicating means on said sleeve for indicating on thestationary plate the position of the sleeve and bar, and means on theouter end of said sleeve for actuating said sleeve and the movableplate.

7. A control mechanism comprising a circular plate centrally-aperturedfor encircling the protruding end of a bar connected with a damperpivoted within a flue in a wall, in combination with a sleeve foroperative connection with said bar end, said plate ada )ted to beattached to the surface of said wall at its rim, and the said sleeverotatably mounted in said aperture of the plate, a central portion ofsaid plate being spaced out of contact with said wall surface, a discapertured to receive the sleeve end therein and rotatably connectedthereon, the disc and spaced portion of the plate having indicatingmeans to show outside the plate the relative position of the disc andsleeve to the plate, clamping means on said sleeve for tightening thedisc and plate against relative longitudinal move ment with the sleeve,and means for'actuation of the sleeve to adjust the bar rotatably, andindicate the amount of such adjustment.

In witness whereof I have hereunto set my hand this fifth day ofOctober, A. D. 1928.

EMIL O. YOUNG.

